Title :
Maximum achievable throughputs for uncoded OPPM and MPPM in optical direct-detection channels
Author :
Shalaby, Hossam M H
Author_Institution :
Dept. of Electr. Eng., Alexandria Univ., Egypt
fDate :
11/1/1995 12:00:00 AM
Abstract :
Tight upper and lower bounds on the maximum throughputs for both overlapping and multipulse pulse position modulation (OPPM and MPPM) in optical direct-detection channels are derived. The corresponding pulse-position multiplicities are estimated. Simple lower bounds for the maximum achievable throughput (with the error rate not exceeding a certain threshold) are obtained for OPPM. A comparison between the maximum achievable throughputs for both OPPM and MPPM is also considered. Our results suggest using MPPM for high efficient transmission and OPPM for low efficient transmission. Namely, MPPM should be used when the transmission efficiency exceeds 0.027 nats/photon
Keywords :
channel capacity; error statistics; optical signal detection; pulse position modulation; MPPM; error rate; high efficient transmission; low efficient transmission; lower bounds; maximum achievable throughputs; maximum throughputs; multipulse pulse position modulation; optical direct-detection channels; overlapping pulse position modulation; pulse-position multiplicities; threshold; tight upper bounds; transmission efficiency; uncoded OPPM; Capacity planning; Costs; Error analysis; Error correction codes; Optical modulation; Optical pulses; Performance gain; Pulse modulation; Space vector pulse width modulation; Throughput;
Journal_Title :
Lightwave Technology, Journal of
